GB560818A - Improvements in or relating to fuel-injection pumps for internal-combustion engines - Google Patents
Improvements in or relating to fuel-injection pumps for internal-combustion enginesInfo
- Publication number
- GB560818A GB560818A GB999642A GB999642A GB560818A GB 560818 A GB560818 A GB 560818A GB 999642 A GB999642 A GB 999642A GB 999642 A GB999642 A GB 999642A GB 560818 A GB560818 A GB 560818A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fulcrum
- pressure
- during
- spring
- idling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
- F02D2700/02—Controlling by changing the air or fuel supply
- F02D2700/0269—Controlling by changing the air or fuel supply for air compressing engines with compression ignition
- F02D2700/0282—Control of fuel supply
- F02D2700/0284—Control of fuel supply by acting on the fuel pump control element
- F02D2700/0289—Control of fuel supply by acting on the fuel pump control element depending on the pressure of a gaseous or liquid medium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
560,818. Fluid pressure servomotor control systems. LOVESEY, A. C., and DAVIES, K. R. July 17, 1942, No. 9996. [Class 135] An engine-driven reciprocating fuel pump for supercharged fuel injection internal-combustion engines is provided with means for varying the effective stroke of the pump to provide a predetermined or constant fuel-air mixture-ratio over the normal working range of boost-pressure and automatically to change the ratio to enrich the mixture at very high boost-pressures and when the engine is idling. In the arrangement shown in the Figure, the stroke varying mechanism is adjusted by a rod 14 actuated by a single-acting piston 10 loaded by a spring 15. Pressure fluid is supplied to the power cylinder through a pipe 12 fitted with a restriction 13 and controlled by a hinged leak-off valve 18. This valve is actuated by a diaphragm 21 which may be loaded in accordance with the temperature of the induction system and the exhaust back-pressure, is subject to the boost-pressure of the engine. The diaphragm is loaded by a spring 23 bearing against a movable abutment 27 moved by a lever 25 pivoted to a rod 24 on the piston 10. During cruising the lever turns about an adjustable fulcrum 29, during highpower conditions about an adjustable fulcrum 28 and during idling about an adjustable fulcrum 30. In another form, in place of the fulcrum 30, the rod 14 acts through a lever turning on a fixed fulcrum and arranged to increase the leverage during the idling range. And in a further modification, in place of the fulcrum 30, a second adjustable loading spring, 'associated with the spring 23, is brought into action during the idling range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB999642A GB560818A (en) | 1942-07-17 | 1942-07-17 | Improvements in or relating to fuel-injection pumps for internal-combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB999642A GB560818A (en) | 1942-07-17 | 1942-07-17 | Improvements in or relating to fuel-injection pumps for internal-combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB560818A true GB560818A (en) | 1944-04-21 |
Family
ID=9882641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB999642A Expired GB560818A (en) | 1942-07-17 | 1942-07-17 | Improvements in or relating to fuel-injection pumps for internal-combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB560818A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119134A (en) * | 1982-04-28 | 1983-11-09 | Bosch Gmbh Robert | Control device for internal combustion engines |
-
1942
- 1942-07-17 GB GB999642A patent/GB560818A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119134A (en) * | 1982-04-28 | 1983-11-09 | Bosch Gmbh Robert | Control device for internal combustion engines |
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